Given that large areas of the world do not see breasts as sexual, it’s hard to avoid the conclusion that breasts are erogenous because our society has said that they are, rather than any innate characteristic.
When I lived in Africa, women and girls had no problem exposing their breasts, but would go to great length to keep their thighs covered.
Strange to refer to it as a supercomputer, when as far as I know, it was the only computer in existence, or one of very few.